From: "Wayne E. Seguin" <wayneeseguin@...>
Date: 2007-10-12T12:44:00+09:00
Subject: Re: How to delete specific characters from a string?

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On 10/11/07, Giles Bowkett <gilesb@gmail.com> wrote:
>
> I think the OP was looking for a method on String itself, but the
> whole point of Ruby is that if the language doesn't have the features
> you want, you just add the features to the language.
>
> class String
>   def delete_n_from_p(n, p)
>     n.times do
>       self[p] = ''
>     end
>     self
>   end
> end
>
> >> "muppet".delete_n_from_p(2,3)
> => "mupt"
>
> That makes it easy to reuse the functionality.
>
> --
> Giles Bowkett
>


This little problem is quite enjoyable:

class String
  def delete_indices(*indices)
    indices.each do |index|
      self[index] = ''
    end
    self
  end
end

>> a = "Testing String"
=> "Testing String"
>> a.delete_indices(0,3,6,8)
=> "estng trng"

HTH,

  ~Wayne

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